Our products are handmade and each product is unique. Material-specific differences, e.g. Color variations, air inclusions, irregularities as well as irregularities in texture and surface are normal and desirable for the concrete! In the beginning, 1-2 crystals can loosen. Consisting of high-quality ultra-high-performance concrete and nickel-free 925 silver, our jewelry pieces are characterized by their skin compatibility and lightness.